<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>[isolation, structure elucidation and cytotoxicity of three new seco‐probotryane‐type sesquiterpenoids, 4, 5‐seco‐probotryenols A‐C (I), along with five new botryane sesquiterpenoids, i.e.</p> </abstract>